Checkline TT-QCM - Manual (Page 5)

OPERATION 4
S
IDE
P
ANEL
I
NPUTS
DC In
The interface for the AC Adapter supplied with the unit. Use this if you
plan on working under Mains power. Use only the AC adapter provided
with the unit. Use of another power source will void the warranty and
may cause severe damage to the display.
RS-232
If you are downloading to a printer, data collector, computer, etc., this is
the mini-plug interface for the RS-232 cable. Values are sent via RS-
232 every time the unit auto-clears or the ENT/clr button is pressed
C
HARGING THE
B
ATTERIES
1. The batteries in this system should last approximately 12 hours
when fully charged. The Low-Battery indicator on the display will
illuminate when the battery voltage is low. Typically, the user will
have between 15-30 minutes before the batteries become too weak to
power the unit.
2. The batteries are charged any time the system is plugged-in. In Fast
Charge mode, i.e. the unit is plugged in and the power is OFF, charge
time is between 2 and 4 hours depending on battery charge level. The
green LED on the front panel will flash when the battery is charging
and turned off. It is recommended the tester be plugged in when not
in use. This will not harm the unit and will increase battery life.
Note: If the tester is to be stored for several months, always ensure the
battery is completely charged prior to storage.
AWS-QCM Guide